Improvement in plane-irons



AUNITEIJ STATES PATENT OFFICE.

ERNEST QUAST, OF JERSEYVILLE, ILLINOIS.

|MPRovEMENr m PLANElRoNs.

i Specification forming part of Letters Patent No. 1455311, datedDrcemberpi), 1873; application filed February 18, 1873.

To all 'whom rit may concern:

Be it known that I, ERNEST QUAsT, of J erseyville, in the county ofJersey and Stateof Illinois, have invented a new Improvement inPlane-Irons; and I do hereby declare that the following is a full andexact description of the same, reference being had to the accompanyingdrawings, and to the letters of reference marked thereon.

This invention is a plane-bit having a shank of cast malleable iron, orcommon wroughtiron, and a removable cuttingedge of steel, the sameconstitutinga new article of manufacture, as will be fully describedhereafter.

In the drawing the plane-bit is shown in perspective.

A represents the upper section of the bit, of the usual form, and ismade of iron, preferbly cast malleable iron. B is the cuttingpart, madeof suitable cast-steel. C is a screw or rivet, by which the parts areheld together; a a are overlapping tongues, shaped to engage with eachother, so as to form a scarfjoint of the two parts A and B. It will beseen that where the two partsnl and B butt together at d and d', theedge d is square,

described, possess all the advantages of those made entirely of steel,and can be produced as cheaply as those made of steel and iron weldedtogether, Wit-hout that deterioration in the quality of the steel whichis almost inseparable from the process of welding.

-Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

The plane-bit described, having the iron shank A and steel cutting-partB, as a new article of manufacture.

This specification signed and witnessed this 5th day of February, 1873.

Vitnesses: ERNEST QUAST.

JAMES A. LooKE, DENNIS BROWN.

